Mike Earussi on another thread brought up a really interesting point - what if Sigma bought Pentax? He laid out some great benefits, like Sigma getting access to some Pentax technology (anti-shake sensor), and also a Foveon based 645...

So that brings up a question - with hardly any camera companies making a profit, and Sigma pulling in ever increasing camera and lens revenue, it may be only a matter of time before Sigma can afford to sweep the market. The pure camera companies like Nikon and Canon and Pentax that cannot lean on revenue from other sources like Sony can may become riper and riper in the comping years. So - what other companies should Sigma buy - if any? In what order should they consider acquisition?